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Here are some more information for Harness Adaptors:

How to Install a Aftermarket Radio in Chrysler Grand Cherokee

The Jeep Grand Cherokee comes with premium sound but when the system stops working or additional features are desired, replacements are a good option.

Upgrading the stereo in a Jeep Grand Cherokee requires removing the front dash panel, which is much simpler than it sounds. Installation takes two hours or less and requires basic tools.
Aftermarket Radio Install Difficulty Level:

This can vary depending on Grand Cherokee vehicle and how complex the dash components are connected together. Take your time, don't grab and yank! There are clips, screws and other various ways that dashes are held together.

Aftermarket Radio installation kit:
The radio installation kit mounts the new radio into the existing opening in your dash.

Wiring Harnesses:
Your aftermarket radio wire harness will wire color for color to the installation kit wire harness. The radio install kit harness will plug into the existing radio harness in your car.

Antenna adapter:
If needed the antenna adapter will connect the factory antenna adapter and your aftermarket radio.

Tools Needed for Radio in Grand Cherokee
Flathead and Screwdrivers
Standard and Metric Sockets
Flashlight
Electrical Tape
Radio Removal Keys
Wire Cutters
Wire Crimpers

Grand Cherokee Installation Instructions:
An Aftermarket Wire Harness is used for Installing & Upgrading to a New Stereo System from a Stock Radio. A Wire Harness plugs directly into a cars Harness to easily allow you to install a new Aftermarket Radio. Basically PLUG N PLAY
Locate the trim panel around the air conditioning controls and unsnap it from the dash.
In years prior to 1996, the trim surrounding the stereo requires removing two bolts under the ashtray instead of removing the entire front dash panel.
Snap out the trim around the headlight switch and remove all five screws located under the trim panels.
Remove the five additional screws from underneath the top of the front dash panels.
Pull the dash panel out and set it aside. Remove the two 10mm bolts, one on each side of the Jeep Grand Cherokee stereo, and pull the stereo out of the dash.
Disconnect the wires from the back of the radio and let them hang from the front of the dash.
Secure the new stereo into the Jeep radio mounting kit per the manufacturer's instructions.
Connect the wiring harness adaptor to the original harness and then to the back of the new radio.
Insert the antenna wire and slide the entire assembly into the dash.
Turn the head unit on and verify the speakers and controls are working properly.
Secure the stereo with the 10mm bolts, screw and snap the remaining trim pieces into place.
It's easier to fix a problem while everything is still exposed. Turn on the power and try each source (AM, FM, CD (if stereo)).

Then adjust the balance and fader settings to check that each speaker is working.

You're brand new radio with iPod, Mp3 USP features and get so many songs with you in the Chrysler car.

Once you're sure the radio is wired and working properly, finish securing it in the dash and reinstall any pieces of dash trim panel that you removed.

A word about the radio installation kit you are about to install. There are many manufacturers of radio installation kits for this vehicle. Each manufacturer produces slightly different variations of the same kit, and a few make individual kits for specific vehicles. The pictured installation kit shown in the illustrations below is a standard kit used for many. Radio installation kits change with the model and years of production of the vehicle. When selecting a kit for this vehicle, make sure the kit you purchase states on the package the installation kit will work with your vehicle model and year. Some kits may require additional setup. Certain kits may be multi function kits designed to work with multiple vehicles and may require the installer to remove break away screw mounting tabs attached to the kit that are not required for your particular vehicle.

About the Author

If you are looking for a good quality audio visit,
Chrysler fascia plates
and
Chrysler Autoradioblende
for more information about car stereo products, and find the right accessories for your car.

radio install for 2004 trailblazer?

ok i got the dash all off and the radio pulled out. i got everything off and pulled two of the connectors off the back but there is still one wire conected. it looks like its for the antenna not sure though cause it wont come out or at least im not pulling hard enough. Anyone know how to dissconect it? and after that like how to connect the new radio. i have instructions from crutchfield but the are very vage like about the new wireing harness and antenna adaptor any help would greatly apprecaited any detailed answer gets best answer plez i need ur help!

try these
http://ss-shootout.com/tunes/cf-dash.pdf

http://ss-shootout.com/tunes/tunes-headunit.html

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