Depending on the year if you have a 1996 or newer you must do it with a scantool diagnostic machine if older than 1996 you can disconnect the battery for 15 seconds and that will erase the trouble codes!
if the starter motor is clicking i would say the battery is on its way out as it may have sulfur on the lead plates on the battery can you change out another battery and confirm if the battery is fine look for a loose / dirty Earth wire and check the starter solenoid wire connections for corrosion as this has happened to me a few times before but if your battery is good it has to be an earth problem i wish you well and hope you get it working
Unfortunately, no one knows or is telling. Companies rarely state power in RMS because Peak Power is a much more impressive. 1000 watt amp, 200 watts RMS x 2 channels at 8 ohms. Look for a sticker on the unit.
https://www.google.com/search?q=Xplore+Amp+5553
..
The radio code is a security feature that's meant to deter theft, and it's unique to each vehicle. If you've lost your code, you'll need to contact a Nissan dealership or service center and provide proof of ownership. They should be able to help you retrieve the code. Please do not attempt to use codes from the internet as incorrect attempts may lock your radio.
The wiring is bad on the plugs and shorting out, or whatever is on the end of the cable has an issue. Also look along the cable for rodent, cat, dog chewing.
Questions like this need 'make model (what is is) of every item involved. On a vehicle 'year make model' as well.
The bad ground causes the amplifier to go into the protect mode. So, make sure to check the grounding wire and overall connection to figure it out and set back the amplifier to its normal mode.
Feb 15, 2023
There are a few solid state fuses inside but if the speaker wires were shorted then it required an authorised Pioneer service centre to repair the damaged amplifiers section.