AK49BWL
GMT400 Forever!
Only if you have an oscilloscope...
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Only if you have an oscilloscope...
Okay, got a 94 chevy P/U CDM and a 90 Cadillac Brougham CDM. Both restored channel change ability, volume control, and clock. I tried both and I can not get any sound no matter how high I turn it up. All plugs are in and antenna also. I do not have a mute button. You think I have two bad ones or am I overlooking something?
It may be that some or all of your speakers are dead dead dead!. When I put a new head unit in my '93 there was no sound at all. I checked each speaker by touching clip leads from a 9v battery to the terminals.
All four were completely dead, (note only touch to terminals, never hook the battery to them for more than a quick touch. If speaker works at all you will hear a click).
In my case there was no noise at all. When I installed new (cheap) speakers from good ol' Best Buy, the radio came alive from all four positions.
I just wanted a good radio in the truck, my speakers are run off the head unit with no additional amp. It is plenty loud enough for average use.
I'll keep searching I guess.Sounds like you got a dud then.
This is probably sacrilege on this thread, and in my defense I still have vinyl records and a tube amplifier, but I pulled the stock non operational radio and cassette deck out of the 94 K2500 and replaced them with a Kenwood single DIN with a USB port and Bluetooth. I ordered the head unit, wiring harness and dash replacement panels from Crutchfield.