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Replacing in-dash radio / navi on 2004 Highlander Limited

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13K views 7 replies 6 participants last post by  gboltz66  
#1 · (Edited)
Hi ToyotaNation!

I recently purchased a 2004 Highlander Limited with navigation. Technology has come a looong way in the last 15 years, and I am struggling to adapt to no longer having a lot of the conveniences that I've come accustomed to using while driving. I was hoping to be able to replace the factory unit with an aftermarket one that included bluetooth, back-up cam compatibility, and Apple CarPlay. I have found systems that say they are compatible with 2004 Highlanders, BUT my concern is that the factory in-dash system is tied to the AC / climate controls.
Has anyone successfully replaced their First-Gen Highlander Limited factory unit with an aftermarket one? Any recommendations?
 
#2 ·
Just finished up my install I’m going to put a YouTube video up with all the steps if anyone is still interested. I have all functions and the original screen just shows “Audio Off” when I press the Audio button. Even my steering wheel controls are working! I’m very proud of how it came out. Now, I just have to fabricate a dash kit.
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#6 ·
Just finished up my install I’m going to put a YouTube video up with all the steps if anyone is still interested. I have all functions and the original screen just shows “Audio Off” when I press the Audio button. Even my steering wheel controls are working! I’m very proud of how it came out. Now, I just have to fabricate a dash kit. View attachment 305537
 
#4 · (Edited)
This is a repost of mine outlining what I did and parts used for my OEM radio w/JBL upgrade:
"Your (and was mine) best bet is to get the full Metra installation kit over at Crutchfield. I didn't buy the Kenwood head end unit from them but was still able to order the kit by entering the brand and model number of the new radio, then paying the higher price [> $90) for the FULL (inc. steering wheel button control interface )] install kit (no discount since I didn't buy the radio from them first). Depending on which brand of radio you buy/have will determine which Metra kit you will purchase - one size does not fit all! You are going to have some "bench work" to do also because the various cables must be connected together (solder & heat shrink is the best way) before you are able to connect to the origional Toyo radio wiring and new head end unit. I bought the two antenna adapters on Ebay from SonixElectronix.com ("Metra 40-UV43 Male to two Female Universal Antenna" Y-cable and "Scosche MDAB Micro/Delco Antenna Adapter for Select 1988-2005 GM Vehicles"). The Toyo antenna power amp lead connects to and is powered by the new radio via one of the Metra cable wiring connections. If you install a backup camera, you'll need to tap into the Toyo's reverse light circuit (I made my connection in the wiring harness at the lower, left kick panel on the drivers side instead of back at the tail light.) Also for the option of a backup cam, you are going to need a hole saw kit to first cut thru the tailgates inner metal panel and then to cut thru the back of the fiberglass(?) rear latch/backup lights mounting panel. Wiring for my cam was run partially thru the headliner then down the passenger side, under the lower door sill cover plates and behind the glove box to the new radio. Again, the dual USB (2.0) socket and backup camera came from Amazon - you'll have to "pick your poison" depending on how big your budget is. All in all, this install cost me nearly $400 ($275 for the Kenwood head end unit, on sale) and several hours of my time because I was extra careful and thorough, but it was worth every penny, blood, sweat and now smiles to me."
Hope this is helpful!
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