PAC AP4-GM61 AmpPRO for Select GM vehicles Model:AP4-GM61 You can expect extreme output

You can expect extreme output from Kappa subs

Battery Terminal Polarity: Positive or Negative

Once activated

Magnet Mass: 21

PAC AP4-GM61 AmpPRO for Select GM vehicles Model:AP4-GM61 You can expect extreme outputDescription: Today's modern vehicle audio systems are becoming increasingly more sophisticated and complex. PAC engineered AmpPRO to dramatically simplify the installation of upgraded amplifiers in data bus controlled amplified sound systems. AmpPRO allows you to keep the original radio's fit, finish, and features while giving you the freedom to improve the audio performance in record time! Benefits Factory sound system upgrade Time saving design