Will later cars '88 & '89 ETAC work in a 1987 car? It is part #MB571381 mine's rusted out and bad.... I need to replace. Thanks

Anyone interested in going? I'm looking to go this Sunday.

need for a 1987....ETAC...part # MB571381   also need OIl sending switch   Thanks. 19130

Hey, The forum wouldn't let me post in the HVAC section, so i'm posting it here. I have a 88 conquest with automatic HVAC. I've got a thread in the restoration center under "Conquest Project."   I need a little help/advise.   My HVAC head unit does not illuminate. The buttons beep when you press them, but the blower motor does not turn on. I have not tested the blower motor with my power probe yet, but that will be the next step.   Any thoughts on why the head unit beeps but the leds do not ligh