ELKHART, Ind. (AP) -- Drivers in the northern Indiana city of Elkhart may want to think twice about pumping up the volume on their car stereos.

The city is aggressively enforcing its noise ordinance, which carries a fine of up to $2,500 for repeated violations. More than 1,100 citations have been issued so far this year.

Police Lt. Ed Windbigler says the department is using two unmarked Mustangs to catch violators and has created a full-time position to enforce the ordinance. The city has also spent $16,000 on billboards warning drivers of the rule.

Money from noise ordinance tickets has paid for police cars and enforcement efforts.

Windbigler says the city is cracking down on noise because it's one of the biggest complaints from residents.

© 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Learn more about our Privacy Policy.

Click here for copyright permissions! Copyright 2008 Associated Press