Penglii Posted June 7, 2010 Report Share Posted June 7, 2010 I am trying to put an aftermarket deck in my 89 TGP, to replace the factory tape deck. Being an 89 it has the split head unit... I got the radio and the cassette units out, and I found the 'performance sound' amp for the door speakers... but I cannot find the head unit. Do I have to take the dash most of the way apart to get to it? Quote Link to comment Share on other sites More sharing options...
Penglii Posted June 7, 2010 Author Report Share Posted June 7, 2010 OK, so I did a bunch of searching on TGPforums and found one relevant post... apparently the stock radio guts are mounted behind the Glove Box. Definitely not where I would have guessed... Quote Link to comment Share on other sites More sharing options...
Addicted2bass Posted June 7, 2010 Report Share Posted June 7, 2010 Yea you will have to make a extension harness to go up to the radio location. Quote Link to comment Share on other sites More sharing options...
Penglii Posted June 7, 2010 Author Report Share Posted June 7, 2010 Yea you will have to make a extension harness to go up to the radio location. I have a long harness adapter from when I had the stereo in my 94 Grand Prix, it ended up being way too long for that car so it might be long enough for the TGP... but I'll find out for sure soon enough. Quote Link to comment Share on other sites More sharing options...
Addicted2bass Posted June 8, 2010 Report Share Posted June 8, 2010 Thats probably the one for the TGP, i know at one time they made a extension harness for those cars. But i couldnt find anything from Metra so im assuming its been discontinued. Quote Link to comment Share on other sites More sharing options...
Penglii Posted June 8, 2010 Author Report Share Posted June 8, 2010 Thats probably the one for the TGP, i know at one time they made a extension harness for those cars. But i couldnt find anything from Metra so im assuming its been discontinued. It very well could be... it seems like it will be long enough if i route it right... but just barely. Plugging it into the back of the head unit might be rather tricky. Quote Link to comment Share on other sites More sharing options...
alec_b Posted June 9, 2010 Report Share Posted June 9, 2010 (edited) Metra still makes it, but you may need to use one for a corvette/cadillac. http://www.crutchfield.com/p_120701858L/GM-Receiver-Wire-Harness.html?tp=2977 That's the crutchfield equiv. of what you need. The actual Metra part # is 70-1855 Tuner Relocation Harness: http://retailer2.installationexcellence.com/productfeatures.aspx?retailerid=1944&productid=2269&sid=FC6F5D77-47C3-456B-8BED-92A700976CCD&vehicleid=215601 If you need a longer version of the above harness, the # is 70-1856 and it takes it from 60" long to 17' http://retailer2.installationexcellence.com/productfeatures.aspx?retailerid=1944&productid=2270&sid=FC6F5D77-47C3-456B-8BED-92A700976CCD&vehicleid=184735 Edited June 9, 2010 by alec_b Quote Link to comment Share on other sites More sharing options...
Penglii Posted June 9, 2010 Author Report Share Posted June 9, 2010 If I cut a small hole in the bottom of the radio housing, I can just, but just barely, get my current wiring harness to work. So that should be OK for now. However, in the future I'm sure I will get bored and remove the old stereo guts, rather than just bypassing them and shoving the wires off to the side. When I do so, I'll need to get *behind* the radio housing to access that wiring better... does that housing come out on it's own, or does the entire front trim panel (with the vents in it) need to come off? Quote Link to comment Share on other sites More sharing options...
ScoobyDoo82 Posted October 18, 2010 Report Share Posted October 18, 2010 Don't mean to bump this post, but rather than creating another topic, how did you get to the head unit? I want to put an aftermarket radio in mine but I can't find it. I hear it clicking behind the glove box but I dont see it. Quote Link to comment Share on other sites More sharing options...
Penglii Posted October 18, 2010 Author Report Share Posted October 18, 2010 I had to remove the glove box insert... after that it was right in front of my face. Quote Link to comment Share on other sites More sharing options...
ScoobyDoo82 Posted October 18, 2010 Report Share Posted October 18, 2010 I had to remove the glove box insert... after that it was right in front of my face. Does it just slide out, or what? Quote Link to comment Share on other sites More sharing options...
Penglii Posted October 18, 2010 Author Report Share Posted October 18, 2010 Kinda... you have to remove the glove box door (screws are in the hinges) and then remove the screws that hold the box in place... they are pretty easy to find. You might have to take the radio bezel off to get to the left hand pair though. When you pull the box out be careful not to pull too hard, pull it out like halfway... then unclip the bulb wiring, then pull it out the rest of the way. Quote Link to comment Share on other sites More sharing options...
ScoobyDoo82 Posted October 19, 2010 Report Share Posted October 19, 2010 Alright thanks I'll give it a go tomorrow. Quote Link to comment Share on other sites More sharing options...
ScoobyDoo82 Posted October 19, 2010 Report Share Posted October 19, 2010 Alright I got to it, and put in 2 different radios, both have pretty bad radio quality. Last week I broke the antenna off at the stud by accident, and I replaced the little antenna mount with one from the junkyard, by some stretch of the imagination, can those be "bad"? Quote Link to comment Share on other sites More sharing options...
Addicted2bass Posted October 19, 2010 Report Share Posted October 19, 2010 Does the car have a power antenna? Quote Link to comment Share on other sites More sharing options...
ScoobyDoo82 Posted October 19, 2010 Report Share Posted October 19, 2010 Does the car have a power antenna? No, fixed mast. FWIW the base I put in was a little rusty, would that have any effect? Quote Link to comment Share on other sites More sharing options...
Addicted2bass Posted October 19, 2010 Report Share Posted October 19, 2010 How bad is the reception? The tuners in aftermarket radios are usually not as strong as factory. If the antenna base is rusty i would try to sand all the rust off as that may be causing the problem. Also check to make sure the antenna wire is good between the tuner behind the glovebox and the radio. There is a disconnect in there so make sure it didnt come loose. Quote Link to comment Share on other sites More sharing options...
ScoobyDoo82 Posted October 19, 2010 Report Share Posted October 19, 2010 How bad is the reception? The tuners in aftermarket radios are usually not as strong as factory. If the antenna base is rusty i would try to sand all the rust off as that may be causing the problem. Also check to make sure the antenna wire is good between the tuner behind the glovebox and the radio. There is a disconnect in there so make sure it didnt come loose. I tried 3 different radios. Original, a Delco CD player, and my JVC radio, all have static. Its worse now than ever. I can only get like 3 stations that come in good enough to not be irritated by the static (still has static, just not as bad). Other stations are nothing but fuzz. Quote Link to comment Share on other sites More sharing options...
Addicted2bass Posted October 21, 2010 Report Share Posted October 21, 2010 Sounds like the antenna isnt working at all. Make sure there isnt a break in the antenna wire anywhere. Quote Link to comment Share on other sites More sharing options...
ScoobyDoo82 Posted October 21, 2010 Report Share Posted October 21, 2010 I tried 2 different antennas, neither help. I also grinding all the rust off the base yesterday and still not right. It got better SLIGHTLY. Quote Link to comment Share on other sites More sharing options...
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