The single "I Love Lake Tahoe" was a big hit in Germany, and in 2000 the band embarked on a worldwide tour with The Bloodhound Gang.

'A' made a brief return in August of that year, appearing at the Reading and Leeds festivals headlining the Concrete Jungle stage.

After six months of touring, including dates with Avril Lavigne in Germany, a main stage appearance at the Download Festival, it was announced that the band was being dropped by their label, Warner Music, due to poor record sales.

Over 2005 and 2006, Carter briefly became a member of Matt Willis live band after playing bass and guitar on the album Don't Let It Go to Waste.

He played bass with Matt Willis at a Radio One Live Lounge session, V Festival, Top of the Pops, Popworld Childline Concert and a UK tour.

In 2009, Carter joined former 'A' bandmate Adam Perry in the Bloodhound Gang, replacing former guitarist Matt Stigliano, who had left due to issues with the other members.

In 2014, Carter formed the metal band Krokodil with James Leech and Dan Foord of Sikth, Laurent Barnard of Gallows, Alessandro "Vman" Venturella formerly of Cryforsilence (now Slipknot) and Simon Wright of Liber Necris.

The album was listed in Rolling Stone as one of its top 20 metal albums of that year, writing "The six-piece's first full-length — the most arresting metal debut of 2014 — revels in the blood and thunder of early Mastodon, the burly groove-core of Coalesce and, occasionally, the calm-before-the-storm chill-outs of Mogwai."

As well as work as a broadcaster and musician, Carter is a painter and illustrator who studied at Central Saint Martins school of art in London.

As well as various gallery shows, he has provided album artwork for bands such as HIM, The Dillinger Escape Plan, Cradle of Filth, Behemoth, Frank Iero, Krokodil, Bossk, Black Foxxes, Vision of Disorder and Hang the Bastard.