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73-87 Chevy _ GMC Trucks => Interior & Equipment => Topic started by: 57Tom on February 26, 2010, 11:30:37 pm

Title: Wiring Delco 2700ETR radio
Post by: 57Tom on February 26, 2010, 11:30:37 pm

Hi, simple question on original GM Delco 2700ETR radio. There are two wires hardwired to unit [orange and brown] besides the three plugs, two for speakers and one for power, ground, and dash lights. I know the orange is for constant power for memory but the Brown is for ? This radio is being installed in my 79 stepper that had no radio so noting to go by, besides the 2700ETR is a later model radio. Also, when did GM use this radio? It is a direct fit for earlier holes. Thanks, Tom.

Title: Re: Wiring Delco 2700ETR radio
Post by: heavychevy91 on February 27, 2010, 01:54:19 pm

iirc brown is the dimmer wire...

Title: Re: Wiring Delco 2700ETR radio
Post by: Grover 1 on February 27, 2010, 07:03:10 pm

This radio is a direct fit for the shaft mount radios.  I don't know what years from start to finish but my 1986 came with one.  They are nice units, mine still works although the LED readout works when it wants to.  I think the problem is cold solder joints, so it's an easy fix.