I have two older PS2 engines acquired earlier this year that both came with battery holders for two individual AA dry cell batteries. DCS would not remember the engine after powering down, so I replaced each with 3v BCR's. Both engines are experiencing crackling/low volume audio. DCS does find each engine after powering down, so I think the BCR's are working. What should I look at first?
20-3101-1 Virginian 2-8-8-8-2 Triplex (Released in 2003)
20-5542-1 Cascade W-1 (Released in 2004)