hand banana

so rather that try to explain my idea, i figured i would draw it out....see above!

my plan is to make the alpine amp completely plug and play with the oem head unit, meaning i unplug the head unit, plug one end of the amp into the harness and the other end back into the head unit, no cutting and splicing of the factory harness!!

so this would require me to get an aftermarket honda male harness and female harness, but ive read numerous times that the generic honda harness' are usually missing the wires to keep dash controls and what not, so i wanted to see what you guys recommend.... and if anyone has done this

also i have no desire to get an aftermarket head unit, i hate the way they look, and my 08 headunit supports ipod thru the hondalink so thats all i really need

i have the wiring diagrams for both the amp and 2008 oem stereo, only wires that dont match are the remote wire on the ktp, and the illumination and dimmer wire on the oem unit... suggestions

Alpine KTP-445 Wiring Colors

12V+ Constant - Yellow
12V+ Switched - Red
Ground - Black
Remote - Blue/White
Left Front Speaker Positive - White
Left Front Speaker Negative - White/Black
Right Front Speaker Positive - Gray
Right Front Speaker Negative - Gray/Black
Left Rear Speaker Positive - Green
Left Rear Speaker Negative - Green/Black
Right Rear Speaker Positive - Violet
Right Rear Speaker Negative - Violet/Black

2008 Honda S2000 Car Radio Wiring Chart
Car Radio Battery Constant 12v+ Wire: White/Blue
Car Radio Accessory Switched 12v+ Wire: White/Red
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Red/Black
Car Stereo Dimmer Wire: Red
Car Stereo Power Antenna Trigger Wire: Yellow/Green
Car Stereo Amp Turn-On Trigger Wire: N/A
Car Stereo Amplifier Location: N/A

Left Front Speaker Positive Wire (+): Green/Yellow
Left Front Speaker Negative Wire (-): Gray/Red
Right Front Speaker Positive Wire (+): Green/Black
Right Front Speaker Negative Wire (-): Gray/Red
Left Rear Speaker Positive Wire (+): Blue/Yellow
Left Rear Speaker Negative Wire (-): Gray/Red
Right Rear Speaker Positive Wire (+): Red/Yellow
Right Rear Speaker Negative Wire (-): Brown/White

wooward

Sorry don't have the time to really look into this. But I'm sure you don't have to hook up all the car wiring to the alpine then the oem. For example, the dimmer wire will bypass the alpine and just go straight to the oem again. To keep the dash controls you need to modify the aftermarket harness that connects to the car side. Since my S2000 doesn't have rear speakers, I took two pins out from those locations and added them to the Mute and Remote locations. You can look more into this on the web.