Intermittent speakers / window switch lamps

[Ed Novak <Novaked@ix.netcom.com>]

Any BTDT on a problem with the rear speakers intermittently cutting out
when hitting a bump, and then coming back on the next bump ... and on
and on...? (On '93 90S)

I've noticed the same symptom on the lamp for the front passenger window
switch (on the passenger door).  I assume it is related to a loose or
corroded connection on the cables running down the passenger side, but I
haven't been able to locate the connector?

Any help would be appreciated!

TIA

Ed Novak
'93 90S
'96 Passat GLX