Audiovox LXA300 Operation Guide - Page 9
Testing
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® LXA300 Testing Before you finish the installation, you should do the following tests to make sure the wiring is correct and everything is operating properly. Reconnect Battery Professional Tip When wiring is complete, reconnect the battery negative terminal. - + Test Power Wiring 1. Turn on the receiver but do not turn up the volume. The amplifier power light should come on. If not, check the RMT and +12V wires. 2. Turn up the receiver volume slightly. All speakers should operate. If not, check wiring connections at amplifier and speakers. Dealing with Alternator Noise The vehicle alternator can cause a "siren" sound in the speakers that changes with engine speed. To prevent alternator noise: • Do not bundle RCA cables with speaker or power wires • Do not run speaker wires parallel to power wires • If you have more than one amplifier, connect all ground wires to the same screw • Make sure all wires are as short as possible • Make sure the receiver black wire has a good connection to the vehicle chassis ground Test Speaker Connections These tests make sure the speakers are connected right. If speakers don't play at all, one (or both) speaker wires may be disconnected. If the wrong speaker plays (you hear left speaker when you expect right speaker) make sure you connected the wires correctly. Once everything is operating correctly, reassemble vehicle trim and dashboard. 9