I am a guitarist, I pretty much only play bass when I am recording or occasionally during a jam. I bought this bass from a friend for basically nothing. Plays nice but the pickups are garbage. They are actives and they sound horrible. What pickups should/can I install in this with no routing etc. If it's any help, I really like the tone from Ernie Ball music man sting rays. Also, does anyone have pickups to sell me for a good price? Let me know!