Hey guys (and gals), I searched the archives, but couldn't find any mention of this problem, so I'm hoping somebody knows what's going on... My mustang: 2000 V6 No mach system Factory split head units receiver/cassette and CD Here's my dilemma...sorry if this is long but I figure the more info I give the easier it will be for somebody to identify where I screwed up here... About a week ago, I turned on my car, and then tried to turn on the radio. It made some low growling kind of noise and then turned off. It wouldn't turn back on since. I first checked the fuses under the dash and they all were fine. Assuming it was a problem with the head unit, I presumed the head unit had blown out and decided to attempt to replace it. (I was going to replace the head unit eventually, anyway.) I removed the two units from the dash without much problem. I've installed aftermarket stereos before so I didn't think it would be a problem. I had the wiring diagrams, and having spliced wiring before, I was prepared to do that again. If I didn't feel comfortable, I also planned to pick up the harness. When I looked at all of the connections, I realized none of it matched any of the diagrams I had. Upon further research at that point, I discovered that there is a separate amp under the dash. The connections I had break down like this: CD player: horizontal 5 wire connector--I believe these are the power cables Black 6 prong rectangular connector attached to a gray cable Black ground wire Head unit: Antenna plug horizontal grey 8 plug connector--I believe these are the power cables for the head unit Black ground wire Black 6 prong rectangular connector attached to a grey cable Black 8 prong rectangular connector attached to a grey cable Assuming the last one would have the speaker wires bundled together, I stripped a small portion of the grey insulation. Instead I found bare wires. I patched it up, and bought a harness that attached to the two 8 prong connectors. I plugged them in and spliced the wires to the head unit's harness. I also ground the black ground wire. At this point the new head unit powers up fine, but there is no sound coming from any of the speakers. Any ideas???