CDX-GT300 DOESNT PLAY BASS FOR CD, AUX PLUG IN, OR IPOD CONNECTOR

If there is a port for an iPod cable then you just pull head unit and connect it. Most people run it out and through the glove box. If there is no port for it then you have to buy a kit.

Crutchfield .com has all that stuff and if not, go to your local car audio shop and ask them to rip you off for the parts and installation.

Hello! Maybe I can help with your question. This model headunit does not support ipod control. It does not have rear or front inputs via 1/8mm jack that you could use the headphone output. You only have a couple of options here. First would be to purchase a wireless fm modulator that would transmit the ipod output through your cars antenna. (i.e. set the radio to 88.1, 88.3, etc) These can be purchased at Radio Shack, Wal-Mart, etc. The only other option would be to replace the headunit with a compatable unit. We sell a Kenwood for $139 that has a front USB port as well as the aux input. The USB on this unit reads droid phones and ipod. That model number is KDC-248U. Hope this helped! Good luck with your venture!

20 year car audio/video installer
Bay manager

Sony head units use either a 9 pin connector, link below:
http://www.kb.sony.com/selfservice/documentLink.do?externalId=C285614
Or a 16 pin connector, link below:
http://www.kb.sony.com/selfservice/documentLink.do?externalId=C217600
And here is a kink to your installation guide.
http://www.docs.sony.com/release/CDXGT300_Installation_Guide.pdf
And your Operating Instructions.
http://www.docs.sony.com/release/CDXGT300.pdf

Here is a link to owners manual for Sony CDX-GT300.
http://www.docs.sony.com/release/CDXGT300.pdf
Here is a link to installation instructions. It looks to me that there are front and rear line out RCA connectors on the back side of your head unit. (Unless, this is not the model of your head unit)
http://www.docs.sony.com/release/CDXGT300_Installation_Guide.pdf
There are devices that are capable of converting speaker level output to line level (RCA) output. I know Scoch is one brand, and here is a link to others.
http://www.electronixwarehouse.com/car/accessories/line-converters.htm
Hope this helps.

Contrary to the below Expert's testimony, the UK CDX-M880 has a REAR AUX connector that will enable you to play your iPod through your car's stereo.

You will not be able to control the ipod's interface through the radio. You will have to use the control on the iPod .

You require a Male 3.5mm extension cable like the following...

A 4-6 foot length is recommended, as the cable will need to be routed from behind the radio to a place your iPod can be easily manipulated.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

If no AM and everything else is ok , the unit needs to come ouit for repair...keep in mind that these are cheaper to replace than repair.

I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_aad3edb7dfa380b9

If your Sony has female RCA Aux inputs, then you can use that going headphone out of MP3 player to the RCA inputs. You won't be able to view or controll any other player from the head unit except an iPod.

Larry T
Winona Lake, IN
http://www.cybersoundsaudio.com/cybersounds/vehiclepics.html

Add Alpine's optional "Full Speed" connection cable and you'll be able to use the CDE-9872 to control your iPod. -Crutchfields website

This is compatible with first and second generation iPods touch.
fyi- if you have a mini-stereo aux in jack on the deck you can connect a ipod touch compatible mini stereo cable to the earphone jack of your ipod.

use the aux lite input on the rear of the reciever. If it is a 3.5mm plug, you will need an extension with both ends male. One end in the aux port, on your head unit, the other end in the headphone jack of the ipod.
If it is RCA Aux lite, you need an rca-to-3.5mm adapter. Either item should be relatively cheap. $4-$5 USD

I had the same problem. most radios have a power antenna wire and an amp turn on wire it sounds like your amps are being turned on by the power ant wire that loses power when you put a cd in try swapping the blue with blue and white wire this should solve it