'87 944 n.a. -- need help identifying origin of electrical noise.
symptom : there's an electrical-ish sounding hum / buzz apparently
behind the dash on the passenger side that is constant while the
electrical system is engaged (i.e. when the key is at stage I) and
persists after the engine is operating. it varies little if at all.
once i started hearing it, i have failed to hear it "disappear".
observations : seems not to be localized at cigarette lighter, but
its close. the ventilation system seems OK i.e. temperature/fan/
defrost works. glove box light connection is "dirty", but sound is
not there. clock is backlit but not working. not sure what to say
about A.C. haz. lights work. i looked thru Porsche's parts catalog
for 1987-1991 944's, esp. sec. 9.901. i am stuck. any questions/
pointers appreciated.
btw, Porsche has another catalog for 944's, but for 1985-1988 -- is
the overlap redunant?
-bryan