98 Tahoe Radio Blues

The volume on my 98 Tahoe cut out intermittently.Sometimes the unit would work for months then out of the blue no volume. Comes back on just like it went off. I suspected it was the volume control. It has the power,scv and
volume all in one switch. Yesterday I installed a new switch. This is soldered into a small board with about 9 pin connections I noticed that some of these were cross soldered as I was melting the old one out. Soldered the new one in and crossed the solders as I remembered they were ( Remembered being the operative word here). Is there a diagram for this anywhere? Just curious? Radio worked for about 10 minutes but volume was stuck@ 25% no matter where I turned the knob. Then the volume cut out again. I guess The Volume control wasn't the problem so now I'm going to buck it up for a used replacement. Is there a code required for the "theft lock". If so; what's the drill. I had no problems removing of reinstalling the old unit but I'm concerned that the replacement might not work. Thanks
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Ahh... electronics, one of my favorite things.
If you have the money, and are willing to 'buck up' why not play with what you have? Disconnect all the cross-solder, and using common pins play with connections that "could be". Absolute worst you can do is fry it, and if your going to replace it already whats that matter? Best thing you can do is get your volume working.
Second, I have this intermitent problem in my 85 K5. Here are my "suspects" though I have been too lazy to look as of yet.
A: Faulty antenna connection (leaning towards this) Why: I still have 'sound' (loud silence...) coming out of my speakers B: Faulty speaker connections (now leaning very far away from this) Why: I still have 'sound' (loud silence...) coming out of my speakers C: Faulty power connections (almost non-existant chance) Why: I still have 'sound' (loud silence...) coming out of my speakers The clock still works. (As an aside, anyone know how to program a 1985' stock radio w/ cassette?
I would check all three of these if you can get your volume working again. If not I would turn that pretty radio into a parts bucket. (I personally have so many electronics around the house I'll never need to buy a resistor, capacitor, etc again...)
-The Lonely Grease Monkey 1985' K5 305CUI TH700R4 NP208 ~if dumpster diving was a sport~
"Ignorance is preferable to error; and he is less remote from the truth who believes nothing, then he who believes what is a wrong." - Thomas Jefferson
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