I’m pleased to be back with another build update. My brother was very kind to me last Christmas in giving me an extremely nice aftermarket headunit as a gift, with all the GPS, hands free, and Bluetooth connectivity of a modern vehicle user interface. Given that it was a cold Canadian winter, I held off doing the project until the springtime, since I park outdoors and didn’t want to snap any of the plastic clips removing any of the trim pieces.
Removing the trim pieces to remove the stock headunit is shockingly easy. In fact, I don’t think I’ve ever pulled apart a center stack in a vehicle so quickly. This is not intimidating, and can be done with merely two tools and your hands in 5 minutes. All you will need is a 7mm socket, short extension, and a plastic trim removal tool, or flathead screwdriver with some electrical tape around the tip so as not to damage your plastic trim. I used a bicycle tire lever, essentially the same tool as a plastic trim puller for this application.
First, open the center console. Remove the two small 7mm bolts at the front of the storage compartment. Remove the chrome trim ring around the gear shift with your plastic tool. After releasing the four clips, engage the emergency, turn the key to accessory power, and put it in N. this is done for ease of trim removal, and providing adequate wiggle room. Pull upward on the plastic section that contains the cupholders, there is a clip at each corner to release. You will also need to remove the plastic connector that powers the 12v power supply if your Center console is equipped with one. Finally, pull outward at the top of the center stack, and release the clips at the bottom as well. Shifting into 1st makes this piece easiest to remove. You will be left with this:
View attachment 329406
I did not feel it necessary to unplug all the the HVAC and other switch power connectors, and merely moved the piece off to the side to remove the factory headunit. 4 7mm bolts hold it in the dash, and they’re easier to access if you use a short 2-3” extension. There are 3 plugs at the back of the headunit to remove, and the antenna connector (orange wire in above photo).
View attachment 329407
After this, I went inside to wire all the new connectors with the aftermarket headunit, to the PAC steering wheel control harness and module. I admittedly hate doing, and am not very knowledgeable in wiring, nor interpreting the diagrams very well. I matched up all the colors and used quick posi-connectors to make all physical wire pairings, opting not to solder for easier removal at a later date.
View attachment 329411
I installed the unit into a Metra faceplate adapter. 4 screws hold it to the aftermarket unit, a Pioneer DMH-W4660NEX. The notch of the faceplate adapter should be at the top.
The next day I went out to route the GPS sensor, and microphone for use of the hands free and phone call features. I placed the microphone high on the drivers A-pillar, and the GPS sensor on the passenger front of the dash, making sure not to cover any access panels or vents. In both cases, I routed the wiring down the front of the dash between the window, and plumbed the wiring into the headunit relief of the center stack using a fish tape and hook. This part is tedious but makes for a nice clean job without visible wiring exposed everywhere. Make sure to clean the surfaces where the double sided tape anchors both of these sensors. The one connection I did not make was to the emergency brake, which allows the screen to be used for video watching from an external source if parked with the emergency brake engaged. Since I plan to go back in after a few months to connect a backup camera (once I find one I like), I will deal with it then. For now, the completed look:
View attachment 329408
I checked to make sure everything worked before putting all the trim pieces back in place, since my own faith in my wiring abilities is questionable at the best of times. Happy that everything worked, and feeling pretty good about my ability to not blow any fuses, or electrocute myself, I put everything back together.
View attachment 329409
View attachment 329410
A new head unit is a great way to modernize the interior of an older vehicle, and in this case I’m glad to have the improved functionality so far. Eventually I plan to add an amp/DSP and subwoofer to this setup, but for now I still have to get to the rear door dynamat and door speaker upgrade to match the fronts. Will keep you all posted when I get to that step!