Radio shuts off when volume loud & gas pressed

[Golfswithbeer]

Ok, first off I am new and apologize for doing anything wrong. I have a G22 gas with an overhead radio console from Custom cart audio. It has 2 kickers and worked fine. So... To add volume I bought 2 100 watt outdoor speakers as rears. When I turn it up loud, it works however... When I push the gas pedal to start the engine, the radio shuts off and quickly "reboots", which is annoying when partying! Anyway, my battery (400CCA) seems to test fine (both with a voltmeter and at local Autozone). Would a new , more powerful battery stop the radio from cutting out? Do I need a 2nd battery just for the radio? Would a marine battery be better? Any help is MUCH appreciated

[teecro]

Sounds like the radio is seeing the voltage drop below a specific set point and it shutting itself off in a self-protective mode and "rebooting" as you say once the voltage returns to normal... If loud music is that important then you may need a battery for just the radio. Another thought is where does the radio get it's power from, cart wiring harness or straight from the battery?

[pachanga90]

Make sure the radio is wired to the battery,and a capacitor inline would help prevent voltage drop at the radio,especially if it has an amp.

[pachanga90]

Make sure the radio is wired to the battery,and a capacitor inline would help prevent voltage drop at the radio,especially if it has an amp.A marine Deep-Cycle would be best if you use the radio alot when parked,a separate battery for the radio with an isolator would be even better,that way you wont kill the cart-battery.

[Golfswithbeer]

It is wired directly to the battery. I have no amps, simply an overhead console with a Sony that draws 20-25 RMS and 40-50 max. The speakers are the standard size in the console (5 1/4 I think) and the rear are 100 watt outdoor speakers from Home Depot. Loudness is VERY important to me and my golf team... Helps us win tourneys. I don't mind doing a second battery if nec but I was hoping to just replace the main battery with a better one so
I don't have to figure where to put a 2nd or how to charge it. I read some stories about 1 battery in a system hurting the other???

[teecro]

What is your voltage dropping to at the moment your radio cuts out or starting the cart? It could very well be that while your battery still has enough @$$ to start the motor the voltage is dropping enough to effect your radio; it may soon leave you stranded....

[Golfswithbeer]

I tested the volts with a voltmeter while cranking the stereo & pressing the gas pedal. It was dropping around 7... give or take a volt. BUT... we had been listening to it parked for a while at my house so it could have been low. I also hooked a battery charger to it and put it on 50 amp setting (jumpstart) and cranked the radio and it still rebooted the radio.

[Golfswithbeer]

The gauge wire is 16 I believe which is what they provide from the cart audio place.

It's a gas cart.

I was reading 5-8 volts across the terminal when cranking the stereo with all 4 speakers and pressing the gas pedal.

Stereo is grounded to the negative terminal.

I don't have a problem putting in a deep cycle (if this corrects the issue). Stinks looking like a turd when your high $$$$$ golf cart with loud stereo cuts out all the time.

[hookm]

May be it's just doing the people around you a favor

[EZGO-MY-WALLET2]

what does the battery read with everything "off"- just sitting ?

with the radio off and starting ?

with radio off and while running ?