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Adding a direct line-in to your car stereo for an iPod/mp3 player

Adding a direct line-in to your car stereo for an iPod/mp3 player
This instructable will show you how to add an auxiliary input, like a headphone jack, to your car so you can listen to an iPod/mp3 player/GPS or anything that has a line-out through your cars stereo.

While I will be adding it on my '99 Chevy Suburban, it can very easily be done on almost all cars, SUVs, and trucks.
Many of you will notice that I have a cassette player as well as a working radio in the car so an FM transmitter or cassette tape with a headphone jack might be the more logical answer. I have actually tried both, and while they both work OK the inconsistency and lower quality of the FM transmitter and the reliability and constant cleaning required of cassette player if you listen to your ipod more than a few times a month just don't cut it when you can have a high quality maintenance free direct line-in for a little bit more.
I found the auxiliary input I wanted at
Peripheral Electronics
then bought it off ebay.

The basic tools required are:
regular crescent wrench
Flat head screwdriver
Drill and bits (I used a 1/4" and a 5/8" bit)

You'll also need a stereo mini (1/8") jack-to-RCA cord about 3 to 6ft long (depending on whether the folks in the back seat want to play with the iPod/mp3 player while your listening). This cord will be what connects to your music player.
 
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Step 1Preparing the car

Preparing the car
You will most likely have to remove the front cover of your dashboard to reach the back of the radio so its a good idea to remove one of you battery cables first so you don't accidentally set off the air bags or anything. There's very little chance of that happening, but if it did you would have much bigger problems than trying to connect your ipod to your car.

If you have two batteries like me (it's a diesel :-)) you should disconnect both of them. Later on I also had to move my shift lever since it's attached to the steering column so I set the emergency brake too.
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22 comments
May 4, 2012. 12:33 PMgaladriel says:
Oh, fantastic, I was thinking about doing this to my '99 Chevy Tahoe; you have the same panels, radio, everything. Thank you for this instructable and allllll the photos!

Can you please be specific about what electronics I need to buy? This will be my first electronics project, so I am unfamiliar with what I'll need.

Do you think there's any way to avoid putting in an extra toggle by having the audio in hook into the "Cassette" controller? It's not like I'm ever going to use the cassette player.
May 23, 2012. 2:26 PMgaladriel says:
Hey, I got this working. Thanks for the pm advice, and thanks for the instructable :) This is great.
Jul 29, 2010. 2:13 PMMACKattacksnipe says:
mine is a 1997 Ford Explore and it had a 6 CD changer in it witch i took out cause it was broken any one know if this will work some how
Sep 12, 2009. 7:59 PMGerGa00 says:
So does the stereo need to have a cd player? Is there no way to do this mod without a cd player?
Jul 29, 2009. 11:59 PMsrhadaham says:
your stereos is one heck of a lot harder to get to than mine, i only have to undo two screws and a faceplate pops off and then two bolts to free the stereo
Feb 4, 2010. 11:34 AMNathan_ says:
Lucky. I had to take out my center console, the power mirror controls, the cover to the gear shift, and the plastic casing around the gear shift.
Aug 4, 2009. 2:54 PMsrhadaham says:
plymouth voyager, I'm not sure what year
Aug 4, 2009. 3:00 PMsrhadaham says:
its a 1999 in case you care
Jul 17, 2009. 11:44 AMgman2000watts says:
great instructable, but as all the installers have told me...DO NOT use metal for a panel popper! it will damage the interior.
Dec 27, 2009. 1:32 AMabadfart says:
lol that doesn't mater in my car  about 70% of the trim is gone 
Jul 24, 2009. 8:55 AMKontaminate says:
How much did the "little black box" cost you on ebay?
Jul 9, 2009. 2:33 PMac1D says:
I have one question: What is all these thing on your keyrings?lol!
Jul 10, 2009. 9:45 PMhack124x768 says:
Looks like grocery store cards and such.
Jul 11, 2009. 9:40 PMac1D says:
dunno where u live, buy here we don't have grocery card lol.
Jul 9, 2009. 8:03 PMslimguy379 says:
my new deck came with an input, and i have an ash tray right below it and i ran the line through the ashtray and now i can play it like u awesome:). thanks for the tip.
Jul 8, 2009. 2:35 PMJanetWitch says:
BTW - GREAT photos!
Jul 8, 2009. 2:34 PMJanetWitch says:
Awesome! I can't wait to put one in!

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