This is how you can set any head unit and wire it confidently yourself. First regardless of the number of din. Connections. You must first isolate the oem head unit wiring harness and separate the positive(hot) goung(black) and accessory(yellow) wires. Next consolidate the output channels. Ie- fr. Left & right also rear lft & rght. Channels. Which will be colored white, grey, green and purple. Next by connecting the appropriate colored wires to the corresponding colored wires on the din unit connectors 1 or 2 fins. ie- din 1 usually consist of primary connection wires for installation common simple and straight forward. However a 2 din connection usually consists of one din being power and the second din for the output channels. As long as you are aware of each wires purpose and function than there is little posibility of incorrect wiring or misconception. Just be aware of power, accessory and channel positive and negative polarities. To ensure an easy and unconfusing system for installation.
Any confusion or misunderstanding of what I have posted will be clearly and quickly reiterated promptly and simply understandably. Thank you, good luck and happy installations to ya. Ps. All current and voltage references can be identified via (dmm) digital multimeter. Or test light. Easily accessible or even made by oneself with little more than a spare bulb and a leangth of wire. Go get em guys, you got this !

 

If you buy the radio from Best Buy and the stereo costs more than 199 dollars, installation is free. A labor fee of 79.99 to 129.99 dollars applies to anything below that, even if the sale price is lower than the original price of 200 dollars.



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Or, spend less than $10 on a wiring harness that's plug n' play and be done with it in less than 5 minutes without decoding wires, using a multimeter, test light, etc.