alright, im installing some jbl 6.5"s and eclipse 4"s in my 91 Rx7. i have a sony HU (4x50w)/cd changer. now the problem is when i went to hook up the speakers all but the back right speaker are really really quiet. and i mean quiet you have to turn it all the way up just to be able to hear a little. now the back right works fine. its run through the stock wiring. i tried hooking the back left, which is also stock wiring but its really quiet also. now i thought it was the stock amps interfering but i spliced the wire right after the harness and hooked it up to see if itd work and it was still really quiet. if anyone has the answer to this one let me know cause id love to fix this