How do u know if A sony xplode XM-552ZR amp is on and how do u connect it to a sony xplode cdx-gt570 head unit.

Go to this link: https://www.manualslib.com/products/Sony-Cdx-Gt505u-3471739.html

Check the connections between the head unit and the XM tuner. If the connections are good check for power and ground.

If the Sony front end unit (stereo) has RCA jacks (Left and Right) in the back it's an input to the Xplode amp. If that's right then the Subwoofer putputs should plug or wire into the Xplode amp. I haven't hooked these up for some time but try a search on Youtube with the units you describe I'm more than 90% sure that there are videos there.

I do not know of any amplifiers with the number your calling for here but i do know of some head units. Your tweeter wires should hook up right with your mid-range wires. They can both run off the same circuit in a series.

Check the fuses in the amp for the output for the subs

power wire from batt fused to positive on amp .earth wire eg - to bare metal in car with bolt or screw. remote wire from amp to remote wire on back of head unit mostly blue wire it tells amp when to turn on then you need a set of rca cables to send sound from head unit to amp they go in subout if you wanna use sub or rear or front out for full sound best thing is to buy amp kit cheaper most the time and all you need there

Check the switch wire connection. It's the one that turns the amp on when you turn the head unit on.

Hello lyttle_matt1,

Connect a DC voltmeter between the "remote" (+) terminal and the "ground" (-) terminal on the amp. When you turn on your Pioneer, you should read 12-14V. If you get voltage for a second and then it goes away, either the incorrect wire from the head unit is connected, or the head unit remote turn-on is defective. If the voltage remains on the terminal and the amp immediately turns back off, it's possible that the remote turn-on is not supplying adequate current for the amp. To determine if that is the case, run a separate wire from a positive (+) accessory terminal (cigarette lighter or fuse box) to the amp remote terminal. If the amp then turns on and stays on, you'll need to wire a relay into the turn-on wire. The wiring for such a relay is shown here. Most any 12V SPST or SPDT relay from an auto parts store or Radio Shack will work OK.

does the music stop? or do the sub(s) kick out. your amp might be to big for the sub rating , try turning down the gain

Make sure you don't have a short circuit somewhere. Make sure the wiring is all intact.

Also look at this link:

http://www.fixya.com/support/t132850-sony_xplod_1000_watt_car_amp_quit

Mike