Yup, contact cleaner, can get it at any electronic supply store, like Radio Shack. But it kind of depends on the type of switch it is, and the damage/issue.
Amps are so inexpensive, even pretty good ones, if it's old, replace it. If you look at the class D type, they are very compact and efficient, can squeeze those in almost anywhere.
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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
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