Cops who visited the retired investing guru’s waterfront California mansion described the alleged aural assault on his neighbor, Mark Towfiq, during a Monday court hearing in the pair’s legal battle over a sculpture Gross installed outside, news reports say.

The Laguna Beach police officers reportedly corroborated Towfiq’s account of being tormented with music blaring from Gross’s home at all hours, allegations he made in a lawsuit last month.

Officer Ashley Krotine said she heard “loud Spanish music” emanating from the PIMCO founder’s property when she responded to a complaint there on the morning of Oct. 22, according to Bloomberg News.

When a lawyer for Gross asked if the tunes were louder than the nearby Pacific Coast Highway, Krotine replied, “Yes, louder than PCH,” the news service reported.

Another cop, Wade Kraus, said he heard the theme song to the sitcom “Gilligan’s Island” blasting from Gross’s house on a visit to the house late on the night of Aug. 1, the Laguna Beach Independent reported.

“Based on my personal opinion and training as a police officer that level of noise at that time was unreasonable,” Kraus testified, according to the local outlet.

The bitter feud reportedly started when Towfiq, a tech entrepreneur, complained to local authorities about a net Gross had hung over the glass art piece in front of his home. Gross, 76, started blaring the music to press Towfiq to drop the complaint, the Los Angeles Times reported last month.

Towfiq sued Gross and his girlfriend, Amy Schwartz, over the loud noises last month, but the couple filed their own lawsuit accusing the neighbor of “peeping tom behaviors” such as installing cameras aimed at their property, reports say.