|ISUZU-Trooper Head Unit Upgrade|
The following is a description of installation of a CD head unit (Alpine CDE-7853) into the ’99 trooper S in replacement of the Isuzu cassette head unit (Delco).
The plug in the trooper will need a wire harness to avoid cutting wires. The one I bought was a Metrawire ABMW-124 (also numbered 70-7712 for the rodeo).
Details of the head
unit plug in the dash of the ’99 trooper S:
The plug on the trooper has the following wires feeding into it in two rows. The top of the plug has the locking clip. R=red, G=green, O=orange, B=black, Y=yellow, W=white, and S designating a stripe. I determined speaker wires by matching to the speaker wire colors at the speakers. I determined hot wires by voltage measurement against car frame ground. I determined the ground by a resistance measurement. The connections from left to right on the plug, looking at the open part of the plug have the following wires attached:
Row 1: [Y (+ left rear spkr); O (+ right rear spkr); R&G-S (undetermined); O&G-S (ignition 12V); clip section, clip section; blank; W (+ front right spkr); gray (+front right spkr)]
Row 2: [Y&blue-S (- left rear spkr); B&O-S (- right rear spkr); B&G-S (car frame ground); G&R-S (undetermined); brown&R-S (undetermined); blank; R&W-S (battery 12V); R&W-S (- front left spkr); G&W-S (- front right spkr)]
The three undetermined wires were not necessary for the Alpine install. At least one of the unknowns likely supplies voltage when the lights are on to illuminate additional display items at night on the stock unit and should match the line on the Metro harness, but it was not tested.
Wiring the metro
I was not satisfied with taking for granted that the harness was properly configured for the trooper. Based on my determination above, the Metro harness is properly configured for the trooper.
Follow the instructions for the wires on the Alpine and the wires on the harness. Almost all of these colors match. I soldered each connection and put on wire caps. I also wire capped one unused wire on the harness for illumination. I taped the open side of the wire caps around the wire for each of the hot leads.
Remove the two top screws above the radio and the one near the lighter on the dash cover.
Total install time: I would figure on at least 3 hours with the soldering.
|Thanks to firstname.lastname@example.org for this detailed article!|
|Last updated on 04/11/2001 07:30 PM|