I have an '81 300SD that is having troubles with a couple of items that I think might be related, you tell me? When driving this vehicle, the seatbelt light comes on whenever you turn something else on (Radio, Turnsignal, A/C etc) and then goes off after a couple seconds. Any ideas? Also, the cruise control did work well and then later stopped working about the time the seatbelt light started to act up.

One more question, I know the electrical prints say that the Cruise control and stop lights use the same ground, if so, where is this at?

Any help would be appreciated....Patrick