Pluging the rca's in

Just run your amp on the front RCA and tune it on your amp they can blow which sounds like whats happend hope this helps

i had the same problem but you seem to have all the right equipment, anyways, alright lets take this slow at the end of your turtlebeaches you should have a usb cord and a headphone plug (it looks just like the end of regular head sets) you must have the usb pluged in to get power to your headphones, which you obviously do or you wouldnt see the MIC icon on the party screen when you talk so my guess is you dont have the headphone plug pluged in the back of you tv you MUST MUST MUST have that pluged in, if you do i hate to say it but make sure the tv volume is up also, and like on my flatscreen i have multiple headphone jacks on the back of my tv so try all of them i would put in a cd in my xbox to have a constent sound, but if you Do have all that right the id try the RCA cables that came with the Phones, i hope this helps like i tell most people if i wer there i would have it done in 2 seconds but yah, thanks, Jamie

First of all get yourself a Y-LINK cable. (single male RCA on one side/ double female RCA on the other side) Connect the Y-LINK to your head unit sub woofer output with the stereo RCA that leads to the sub woofer amplifier. Now you are connected to the correct output. I do not know what head unit you had connected before to base your comparison, however there is a output voltage difference from one head unit to another, (1.2V, 2V, 2.5V, 4V, 5V) and that is what determines where the gain on the amplifier should be set to. Always match the headunit output voltage with the amplifier gain control to be the same. It is not uncommon for some entry level units to have a single sub woofer output. dreamsystems

Buy a rca to aux 3mm plug then you can connect to aux port.
RCA out is for the signal to the amp from the Head Unit. Mic is probably for your cell phone.
Am pretty surprise that an HU like that doesn't have USB Ipod support?

make sure everything is connnected right.

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.

u can also check where you pluged the rca cables into the head unit make sure there in the right spot

This one Wire should be for the +. Try connecting the + to the Head Unit and - to a Common Ground. At the Worst, You will Blow the Amp Fuse if not Correct. The Lead from the Head Unit is Only an Off and On from the Ignition. Please Rate My Response! Thanks!

There is no power from the rca jacks. Option 1; connect the speaker wires directly. Any aftermarket auto manual (Hayes, Clymer) with wiring schematics will let you know what wire is what in the dash. Option 2; RCA jacks output to an amplifier. There is no power coming from the RCA jacks. They have to be used with the amp. If you chose to use the normal speaker wires, be aware that these radios do not like stock speakers or wire. If you take the time and money to replace all of it, the head unit will last much longer. If you choose to use an amplifier, it will burn out fast unless you replace the speakers and wires immediately.

bagman Fat Red wire from batter + to Fuse. Fat Red wire From Fuse to Amp +. Amp- Fat Black wire to body Ground. RCA cable run from Head unit RCA jacks down opposite side opf car from power wires. To Amp RCA inputs. Wire Speaker REd terminal to Plus on Amp. Balck Terminal to Minus on amp. Blue Wire is REmote, and wires to Blue on head Unit. Remote on Amp.