all the lights pulse in/on my car with the bass, what should i do without buying a capacitor

 

Do the big three and get a better battery. Jst search for the big three on here and you will find some info....its too late to type stuff................

 

well what is the cheapest thing that i could do, i heard of running a better battery ground

 

As habeba86 said, Big Three: https://dodgeforum.com/m_768074/tm.htm

 

Big three... Technically its cheaper to do the big three than to buy a "Good Capacitor" sometimes... It just takes some time. The only expensive thing that you might have to look into is a new bigger and deeper cycle battery... I highly reccomend for the price the really large Die Hard Gold top... It easily compares to stinger bats or even the Optima's... Kinetic Bats are very good as well though, and i would place them above the Die Hard