HELP!!! What harness do i need?
03-07-2009, 04:30 PM
#1
2nd Gear Member
Thread Starter
Join Date: Oct 2007
Location: PA
Posts: 350
HELP!!! What harness do i need?
I have been trying to install an aftermarket head unit in my 2003 Gt with Mach 460 system. I have tried all brands of harnesses that include an amp harness (metra, Schosce, etc.) and none of these fit the stock harnesses the look as they would fit but they do not. does any one know if there is a adapter out there if so who makes it and where do i get it. I have heard that the Mach systems were made very sophisticated and put out 8 ohms to the speakers instead of the usual 4 ohms and to put an aftermarket system in the car would be to replace the speakers amps and rewire the whole sytem is this true???? Im at my witts end and am about to throw in the towel on this and just keep the stock system.
03-07-2009, 08:48 PM
#2
6th Gear Member
Join Date: Feb 2006
Location:
Posts: 6,936
no you do not have to switch everything out. You are correct on the woofer impedence but it is not an issue unless you try to replace the speakers with out replacing the deck. There was a switch of hrn's around that time and I am not sure which one you have. Pg2 of my cardomain page shows how the old style hrns's look like and if yours look like that then I can help you.
03-09-2009, 01:48 AM
#3
2nd Gear Member
Thread Starter
Join Date: Oct 2007
Location: PA
Posts: 350
ttocs the harness in your page is similiar to the first one i tried i bought both the metra and scoche brands and neither one worked mine has the amp plug and one larger rectangle plug and one smaller rectangle plug ill take a pic and post it up.
If anyone can help or has any information please let me know.
If anyone can help or has any information please let me know.
03-09-2009, 08:29 AM
#4
6th Gear Member
Join Date: Feb 2006
Location:
Posts: 6,936
the best thing to do, is to take the radio out of your dash and then look at the back of it. The hrns you need will look EXACTLY like the hrns that is mounted inside the radio. IF you were to take this to a local audio shop they could match one up with no issues.
03-10-2009, 10:30 AM
#7
6th Gear Member
Join Date: Feb 2006
Location:
Posts: 6,936
if it looks similar to mine then it should be the old style, Scosche uses FDO2B and metra 70-1770. If you tried them, and they looked like they should fit but didn't then it sounds like you might have had them backwards. The power and speaker harnes look VERY similar(other then one being black the other grey) as they are almost the same shape but will not plug into one another.
