1988 Ranger Super Cab Premium Sound?

[UnderMedikated]

How do I tell if my Ranger has premium sound of just a typical setup?
It has AM/FM Cassette with 4 speakers. If it does have premium sound do I need to buy a special common ground adaptor if I only want an all in one unit (no subs or externall amp)? I'd like to replace my factory unit with a Sony or like model. I'm hoping it will be a simple install like my other vehicles. I have not messed with the stock unit at all. It's dying on me and needs to go. The speakers are good.

 

[UnderMedikated]

Got it from FAQ's

I think mine is standard. I'll dig into it later when it warms up. Either way I'll get it to work. Walmart carries the adaptor.

 

[Natedog]

According to my 1987 FSM the Premium system has a THIRD plug (eight pin) that goes to the opposite rear corner of the head unit.....therefore no plug in the head unit and no wire harness plug = no Ford factory premium sound.

FOr this plug:

Pin #2, 8......no circuit #.......not connected
Pin # 7.........circuit # 747.....at output sense (used with premium sound only)
Pin # 6.........circuit # 694.....radio ground
Pin # 5.........circuit # 484.....display back lighting
Pin # 4.........circuit # 19.......radio graphics lighting
Pin # 3.........circuit # 137.....radio power (B+)
Pin # 1.........circuit # 54.......radio memory (A+)

FYI, pin # 1 is a the end with the little little plastic tab on the outside of the connector shell.

IME (see sig and my project posts) that many (but not all) wires for 1987 and 1988 are the same color....so this should at least be a guide, but not necessarily the exact wire colors for your 88.

 

[UnderMedikated]

Thanks, If it's not premium It will be easy. I will get a standard adaptor plug from Walmart or a local stereo shop. I don't want to mess with common ground adaptors etc. I'm not using an amp so no big deal.